/*******************************************************************************
 * Copyright (c) 2005, 2006 Erkki Lindpere and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Erkki Lindpere - initial API and implementation
 *******************************************************************************/
package org.eclipse.ecf.internal.provider.phpbb;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.httpclient.NameValuePair;
import org.eclipse.ecf.bulletinboard.BBException;
import org.eclipse.ecf.bulletinboard.IThreadMessage;
import org.eclipse.ecf.internal.bulletinboard.commons.AbstractBulletinBoard;
import org.eclipse.ecf.internal.bulletinboard.commons.webapp.PostRequest;
import org.eclipse.ecf.internal.bulletinboard.commons.webapp.WebRequest;
import org.eclipse.ecf.internal.provider.phpbb.identity.ThreadID;

public class ThreadBrowser2 {
	Thread thread;

	private AbstractBulletinBoard bb;

	public ThreadBrowser2(AbstractBulletinBoard bb, Thread thread) {
		this.bb = bb;
		this.thread = thread;
	}

	private static final int STARTPAGE = 1;

	private static final int NONE = -1;

	public List<IThreadMessage> fetchNewMessages() throws BBException {
		List<IThreadMessage> messages = new ArrayList<IThreadMessage>();
		try {
			int nextPage = STARTPAGE;
			while (nextPage > NONE) {
				WebRequest req = createRequest(nextPage);
				req.execute();
				String resp = req.getResponseBodyAsString();
				req.releaseConnection();
				// Add messages from page
				messages.addAll(0, ((PHPBBParser) bb.getParser())
						.parseMessages2(resp, thread.lastReadMessageId, true));
				nextPage = ((PHPBBParser) bb.getParser()).parseNextPage(resp);
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
		return messages;
	}

	public WebRequest createRequest(int page) {
		/*
		 * String ppStr =
		 * bb.getActiveConfiguration().getProperties().getProperty(
		 * IBBConfiguration.P_POSTS_PER_PAGE);
		 */
		int pp = 15;
		int start = (page - 1) * pp;

		WebRequest req = new PostRequest(bb.getHttpClient(), bb.getURL(),
				"viewtopic.php?t=" + ((ThreadID) thread.getID()).getLongValue()
						+ "&start=" + start);
		req.addParameter(new NameValuePair("postorder", "desc"));
		req.addParameter(new NameValuePair("postdays", "0"));
		req.addParameter(new NameValuePair("submit", "Go"));
		return req;
	}
}